TLC271, TLC271A, TLC271B
CMOS PROGRAMMABLE LOW POWER OPERATIONAL AMPLIFIERS
Description
Pin Assignments
The TLC271 operational amplifier combines a wide range of input
offset voltage grades with low offset voltage drift and high input
impedance. In addition, the TLC271 offers a bias-select mode that
allows the user to select the best combination of power
dissipation and AC performance for a particular application.
(Top View)
Using the bias-select option, these devices can be programmed
to fit a wide range of applications. Three offset voltage grades are
available, ranging from the low-cost TLC271 (10mV) to the
TLC271B (2mV) low-offset version. The devices are offered in
both commercial and industrial operating temperature ranges.
OFFSET N1
IN-
BIAS SELECT
VDD
1
2
3
4
8
7
6
5
IN+
OUT
The extremely high input impedance and low bias currents, in
conjunction with good common-mode and supply voltage rejection
make these devices an excellent choice for high performance
designs.
GND
OFFSET N2
SO-8
The devices also feature low-voltage single-supply operation with
a common-mode input voltage range which includes the negative
rail.
Features
Applications
Wide range of supply voltages over specified temperature
range:
With the programmability options of the TLC271, a designer can
choose a very low current option allowing for extended battery life or
choose a higher current option for more performance. It is possible to
switch performance modes as the application demands change.
0°C to 70°C . . . 3 V to 16 V
-40°C to 85°C . . . 4 V to 16 V
Single-Supply Operation
Common-Mode Input Voltage Range
Extends Below the Negative Rail
Low Noise:
The TLC271 is well suited for many consumer audio, industrial and
other low power applications.
20 nV/√Hz Typical @ f = 1kHz
(High-Bias Mode)
Audio
Microphone Preamplifier
Filtering – Equalizers
Signal Amplification
Industrial
Output Voltage Range Includes Negative Rail
High Input Impedance
ESD-Protection Circuitry
Designed-In Latch-Up Immunity
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Power Supply
Instrumentation
Metering
Medical
Portable Meters and Measurement
Instrumentation
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free,
"Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
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www.diodes.com
November 2014
© Diodes Incorporated
TLC271, TLC271A, TLC271B
Document number: DS35395 Rev. 2 - 2